Grain cleaner



C. METTLER, Sn.

GRAIN CLEANER. APPLICATION FILED Aus,24,192|.

Reissued Jan. 24, 1922.

I /v v5 To 2?, Gil/W5 70f METIZE/T 50.

C. METTLER, Sn.

GRAIN CLEANER.

Reissued 24 APPLICATION FILED AUG. 24, 1921.

7 3 Afro/M5) UNITED STATQSW.

ATENT OFFICE.

cnnrscrorrrmnr'rnnn, Sit, on MENNO, sou'rn DAKOTA, ASSIGNOR TO THE woND GRAIN CLEANER COMPANY, on sr. PAUL, MINNESOTA, A CORPORATION OF SOUTH DAKOTA.

GRAIN CLEANER.

diale -75.

Specification of Reissue'd Letters Patent. Rei d J 24 192 Original No. 1,356,777, dated October 26, 1920, Serial No. 392,257, filed June 28, 1920. Application for reissue filed August 24, 1921.

T all'whom it may concern:

Be 1t known that I, Crmrsrorr-r Mn'rrnnn, Sn, a citizenof the 'United States, residing at Menno, 1n the county of Hutchinson and 5 State of South Dakota, have invented certain new and useful Improvements in Grain Cleaners; and I do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable OthGIS'SkillBd, in the art to which it appertains' to make and use the same.

The present invention relates to cleaning devices andhas reference more particularly to devices for cleaning, cooling and drying grains by air blasts.

The object of my invention is to produce a device by which various grains may be cleaned, cooled, dried and otherwise improved, whi his simple in construction, easy to make and carries no mechanical parts to get out of orderor require lubrication. ,With this 'andother objects in view my invention consists incertain novel features "or construction, arrangement and combination of parts as will be hereinafter' set forth and pointedout in theclaims, reference being had tothe drawing in which: E .ig. 1 is aperspectiveview showing the c 1jeaner as, installed; Fig. 21s a vertical longitudinal section w d;- 4 T r 1 Fig.3 is a horizontal longitudinal section taken on line 3-3 of Fig; 2.

I J As a practical embodiment of my invention I utilize a casing which is a box-like structure introduced between supply and storage elements, and maybe of any suitable eri The c as ing ilicludesma'top and bottom 40 front and rear walls 'andendwalls', the easing' being of considerably greater extent from *endito'end'than ."from front to rear. The top includes two .s ectionsfi and 7 which extend froni the upper corners'of the ends a short: distance horizontally and then our uely convergingmeeting in'an angle 8;

" i tfw ll t us'besee'n that topfwall projects eewee raiy into the casing. J

fi hesh ell are.

the WaIl-BhaVingfopenin'gs9i and 9" at its upper and lower. ends respectively;

11 represents; opposit'lf slanting. parti- ,.PQ t e-inner Surface of. end

des gnated 9 and 10,

Serial No. 49 5,093.

Well 9 and the same width as the casing thus filling the space between the front and rear walls.

Theupper partition 11 begins at the lower end of the opening 9 and extends into the cas ng approx mately parallel with the section 6 of the top thus forming a downwardly inclined chute.

The lower partition 11 begins a short distance above the'opening 9 which is of somewhat less area than the opening 9 and extending upwardly within the casing at an angle meets the upper one of the partitions n a point at approximately the vertical center of the complete device. i

To the opening 9 is applied a tubing 12 through which grain is delivered to the cleaner, and at the bottom of the same side to the openincr 9 is applied the tubular spout 13 through w ich blasts of air are fed into the casing.

The lower end of the casing is partially closed by a bottom section'l f which extends about one half way across the lower end leav ng a space or opening 15 through which thecleaned grain falls into a bin or other suitable receptacle .or provision made for such. The bottom of the casingis; fitted in an openlng 16 in a floor or platform 17 The end wall 10 bends inwardly and downwardly as shown in Fig. 2, presenting 1 an inclined wall 10 which acts to deflect the entering air blast upwardly that it may discharge'tlirough the opening 10* in wall 10, and the discharge spout or tube 18.

. Depending from the member 7 of the top 1s a bafilehoard 19 which fills the space between th'e'front and rear wa-llsand extends downwardly to a point in substantially the liorlaontal'plane of the meeting points of partltions 11. This bafile, awn] be noted, is in advance of the incline entrance chute and intervenes discharge outlet 10".

The reference charactersQO indicate round rods extend'ng from front to'rear'of the casing within the same and they are disposed in a Slantingse'riesin a plane which is substantially wall or floor of the grain inlet chute; the distance between the'respeetive rods of this series is such as to genemu let the grains was free y yet close enough to offer, t me between the same and the a continuation of'the lower obstruction and cause the grains to be whirled or tumbled as they drop toward the opening in the bottom.

In the front wall 21 of the casing is provided an opening which is controlled by a pivoted door 22 which is held in its closed position by a keeper 23. This opening may be used to clean out the casing should straw or refuse become caught or clogged in the inclined chute. v

At the lower end of the casing the front wall is also provided with a hand-hole 24 covered by a gate valve or cover 25 pivctally secured to the front wall; through thishand-hole the lower end of the casing can be relieved should it become clogged.

It is thought that the operation of the device will be obvious it being understood that the grain enters the casing at 9* and at the same time and continuously a blast of air is delivered into the casing and through the current of the entering grain; the entering grain is carried down the inclined chute by its weight and force of gravity, and if any should enter with suflici'ent force to go across the casing it Will strike the baflle 19 and fall toward the round rods 20 disposed in a slanting or oblique series.

The grain being heavier than the impurities with which it may be mixed such as smut, chaff, etc., falls through the opening 15 in bottom of casing after having been tumbled on rods 20 thereby loosening and knocking off any adhering foreign substances and also cleaning to some extent.

The entering air blast coming in'through tube or spout 13 blows the light foreign sub stances over toward the inclined wall 1O which deflects the blast upwardly as indicated by the arrows in Fig. 2 carrying the dirt, etc.,and discharging through spout 18.

It will be apparent that the rods 20, in addition to acting as dirt loosening and cleaning members, will also act to distribute the grain and scatter the. same by the tumbling action above mentioned so that the same delivered to the air blast in. an efii- {cient manner. The grain being thus scattered or distributed, the light particles are more easily caught and carried off by the current of air.

" What 18 claimed 1s:

i 1. A grain cleaner having in combination 55 a substantially closed imperforate casing, a grain inlet means adjacent one upper corner thereof, an air blast inlet means adjacent the lower corner thereof on the same side as the grain inlet means, means for directing the grain downwardly toward the center of the casing terminating at an intermediate point therein, a grain cleaning and distributin device disposed in the path of thegrain a jacent the end of but separated from said last mentioned means, an

a side and extending from the top of the easing downwardly 'to a point adjacent the said distributing and cleaning means.

3. The structure set forth in claim 1, the said cleaning and distributin means comprising a series of substantially {parallel members t. The structure set forth in claim 1, the side of the casing opposite the grain inlet sloping inwardly toward the grain outlet opening.

5. A grain cleaner having in combination, a casing having substantially parallel and vertical front and rear end walls, a grain inlet means at one upper-corner thereof, an

air blast inlet at the corresponding lower corner, means within the casing for causing the currents of grain and air to intersect at an intermediate point in said casing, spaced grain cleaning and distributing means in said casing disposed in the path of the grain. intermediate of the top and bottom of the casing, said casing having a discharge opening for grain in the bottom thereof and adischarge openin for the air and impurities carried there y in the side opposite the grain inlet opening.

6. A grain cleaner having in combination a casing having substantially parallel sides,

a grain inlet means at one side and adjacentthe top thereof, V-shapedprojections extending into said casng from said side and the top forming air and grain directing means, an air blastinlet means at the said side of the casing adjacent the bottom thereof, an air outlet means at the other side of said casing adjacent the top thereof, and said casing havinga grain outlet opening in the bottom thereof adjacent said latter side.

7. A grain cleaner having in combination a casing having a grain inlet means adjacent one upper corner thereof, an air blast inlet means adjacent the lower corner thereof on the same side, partitions extending from said siderinto said casing and intersectin at an intermediate point thereof, spaced grain cleaningianddistributng means disthe top of said casing in front of the air outlet means.

9. A grain cleaner having in combination a casing having substantially parallel sides, a grain inlet means adjacent one upper corner thereof, an air blast inlet means adjacent the lower corner on the same side, mem bers having inwardly converging sides projecting into said casing from said side and the top thereof and forming grain and air directing means, a grain distributing means in said casing adjacent the one of said members projecting from the side of the casing, an outlet means for the air and impurities carried thereby adjacent the top of the casmg at the opposite side thereof and said casing having a grain discharge opening in its bottom.

10. A grain cleaner comprising a casing having top and bottom, front and rear, and end walls, the top wall comprising a pair of sections converging downwardly forming an entrant angle, one side wall also having an entrant angle forming with the top section an inclined grain entrance chute, the said side wall having below the entrant portion an air blast entrance, a series of trans verse bars disposed in an inclined plane beyond the lower end of the grain entrance chute, a baffle plate depending from the top wall beyond the entrant angle and project- 11. In a device of the character and for the I purposes specified, the combination with a casing having spaced apart front and rear walls, of a grain entrance and air blast inlet in one end wall, a downwardly inclined chute leading inwardly from the grain entrance, an inclined. series of rounded transverse bars continuing beyond the lower end of said chute and at approximately the same inclination, a baffle plate depending vertically from the top of the casing between said transverse bars and a discharge aperture at the upper corner of the other end wall of the casing and projecting toward said bars, the lower portion of said last named end wall inclined downwardly and inwardly to form a deflecting surface whereby mixed air and impurities are directed upwardly to the discharge aperture, and means carried by front wall to permit cleaning both above anl below the inclined series of transverse ro s.

In testimony whereof I affix my signature.

CHRISTOPI-I METTLER, SR. 

